Add sglang router minimal/experimental support #5671

Job	Run time
compute-version	2s
build-docs	0s
build-artifacts / frontend-build	12s
build-artifacts / code-lint	51s
build-artifacts / gateway-build	10s
build-artifacts / runner-test (macos-latest)	1m 2s
build-artifacts / runner-test (ubuntu-latest)	1m 1s
build-artifacts / generate-json-schema	14s
build-artifacts / python-build	23s
build-artifacts / python-test (macos-latest, 3.9)	2m 14s
build-artifacts / python-test (macos-latest, 3.10)	2m 17s
build-artifacts / python-test (macos-latest, 3.11)	2m 34s
build-artifacts / python-test (macos-latest, 3.13)	2m 16s
build-artifacts / python-test (macos-latest, 3.12)	2m 14s
build-artifacts / python-test (ubuntu-latest, 3.13)	2m 29s
build-artifacts / python-test (ubuntu-latest, 3.10)	2m 27s
build-artifacts / python-test (windows-latest, 3.9)	1m 55s
build-artifacts / python-test (windows-latest, 3.11)	1m 53s
build-artifacts / python-test (ubuntu-latest, 3.12)	2m 29s
build-artifacts / python-test (ubuntu-latest, 3.11)	2m 28s
build-artifacts / python-test (ubuntu-latest, 3.9)	2m 29s
build-artifacts / python-test (windows-latest, 3.13)	2m 5s
build-artifacts / python-test (windows-latest, 3.12)	1m 55s
build-artifacts / python-test (windows-latest, 3.10)	2m 10s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	40s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	32s
upload-post-pypi-artifacts	0s
upload-pre-pypi-artifacts	0s
	39m 2s

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